Question

what is the best approximation of the weight of an object of mass 800 gram?

explain ​

Answer 1

Answer:

the best approximation of weight 800g is 1kg

Explanation:

because 1 kg is the closest and simplest form in which the object's weight can be estimate

Answer 2

Given,

Mass of an object = 800 g.

To find,

The best approximation of the weight of the object.

Solution,

The weight of an object (W) can be defined as the product of its mass (m) with acceleration due to gravity (g). That is,

$W=mg$     ...(1)

Here, it can be seen that the weight of the object is given as 800 g.

Since 1 kg = 1000 g

1 g = 0.001 kg

⇒ 800 g = 0.8 kg.

Now, using eq. (1), and g = 9.8 m/s²,

$W=(0.8)\times (9.8)$ N

However, as an approximation, the value of g is sometimes taken to be 10 m/s². Thus,

$W=0.8 \times 10$

⇒ W = 8 N, which should be the best approximation.

Therefore, the best approximation of the weight of an object of mass of 800 grams will be 8 N.